Donald Crouch in high school said, “Do you like these words?” I was then writing words of my own. He said, “Do you like these words? Do you like the way they sound in your head?” He said, “Well, they sound ten times better when you give ’em out in the air. It’s too bad you can’t say these words.” He began to challenge me, to nudge me toward speaking again, and by using my own poetry — and then other poets because he himself was a compatriot of Robert Frost, he himself was a poet. He himself said he learned a poem a day. In case he went blind, he’d have a whole book of poems in his head. And he nudged me toward that, toward acknowledging and appreciating the beauty of words.

My mum beautifully embraced and encouraged the unpredictability of my wayward career.

quite early I was picked up by teachers in these small schools in Alabama who encouraged that interest.

It so happened that we had a very good math teacher, who was a Communist. I remember having learned from him something that I never forget: the rule of nines. A simple point: you add up the numerals in a number, and if the original number was divisible by nine, then the sum of the figures also is. For instance, you take a number like 243. Two and four and three is nine. Therefore, 243 must be divisible by nine. Actually it is nine times 27. The rule is interesting because it’s so simple. What was really interesting to us ten-year-olds is that our math teacher proved it. The proof is not terribly difficult, but it was one of the first simple and not quite obvious mathematical proofs that I encountered.

I didn’t like it at all. This problem is called Meniere’s syndrome. It causes dizziness, nausea, lack of balance and so on. The prediction was that in some cases it was correctable. I said, “In my case it is going to be correctable.”

Oh, absolutely. I was delighted when I was assigned command of the first Gemini flight with Tom Stafford as my co-pilot, but it was shortly after that I developed a disorientation problem in my ear, and NASA grounded me. I was grounded for almost six years.

That’s always been a good lesson to me that you’ve got to do the very best you can all the time. Now, you can’t always do that. But you can recognize when you’re goofing off, and get back on track.

I think all of us certainly believed the statistics, which said that probably 88 percent chance of mission success and maybe 96 percent chance of survival. And we were willing to take those odds.

Those are important, but there is still a need for any youngster who has any scientific interest at all to continue the lead that we have on technology in the world today, if we are interested in the future of the United States.

No, I didn’t. Certainly when I was in the one-room country school you described, I guess my ambition at that point was to get through with a creditable performance. Really, of course, nobody thought about astronauts in those days, but I didn’t really even start thinking about airplanes very much when I was in grade school. So that interest sort of came later on.